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I bought an external oil filter unit for my DSM when i was going to be running the ball bearing turbo. I have since sold the turbo and still have this in/out remote oil filter unit with K&N oil filter (half a case) im not running a ball bearing turbo on my ej22t but would still like to use thise remote filter setup. Are there any downfalls to using it? Such as flow restriction???

There are many experts on different facets of Subaru information. They tend to view and respond in the forums where their knowledge level is highest. By posting in the inappropriate forum, you are not only diluting the wrong forum, but short changing the search results of others and increasing the chances of an expert missing your question.

Remote filters do zippo except relocate the filter. Bypass filters actually work, but their $200+ price tags make 99% of the anal retentive "oil dorks" on here shy away. In the end, what is the value of a $200 bypass filter that requires two expensive filters going to do for you on a car that may only last 2-3 years before it goes bye-bye anyway? Quality filters will filter down to around 5-10 microns which is good enough for most users. Bypass filters which filter down to 2 microns are really only practical for long haul users who use extended oil change intervals. That's why 99% of them are used on fleet vehicles.

For a performance car, flow is really more important than filtering. With a remote setup its possible that your engine will run dry for a longer period of time when you start it. Most bypass filters steal some of the oil pressure to push the oil through their thick media, I was told by an oil expert (who analyzes my used oil) that you should never use a bypass on a performance engine. However, the best bypass filters actually use toilet paper (cheaper) and filter down to less than 1 micron, but require frequent changes.

This is just an inline filter unit which takes a screw on filter that you put between the oil feed line and the turbo. You still keep the stock unit aswell. This is why im asking, I already have everything and if you think the same setup is $200 i will sell you m ine for $100 because from out parts store walk in price on them is only $25.

The set up you are talking about will provide zero benefit. The bypass filter I posted about is LEAGUES better than just having two filters. Two filters, four filters, eight filters.....they will only filter as good as the best filter in the chain. Unless you upgrade to a bypass filter set up, you are only wasting money.

Also it sounds like those filters would be in series, adding alot of restriction. Who knows if enough oil would even reach the turbo once you add extra restriction right before it, it could just take the path of least resistance.

Btw, what does this mean???:

Quote:

I already have everything and if you think the same setup is $200 i will sell you m ine for $100 because from out parts store walk in price on them is only $25.

Also it sounds like those filters would be in series, adding alot of restriction. Who knows if enough oil would even reach the turbo once you add extra restriction right before it, it could just take the path of least resistance.

Btw, what does this mean???:

Sorry for the mix up, but i bought just the inline oil filter unit for $25 from my fathers Auto Value parts store, and the K&N oil filter was another $50. People run them before a ball bearing turbo to keep anything from possably getting into the turbos oil feed, im just wonder if by using the kit THAT I ALREADY HAVE AND DO NOT NEED TO BUY OR "waste money on" would increase the life of the turbo. The only issue is if having the oil filter before the turbo would create to much restriction and starve the turbo for oil. I realize that few of you may have any exlerience with this scenario but please dont bother me with your BS hearsay just because you dont have one and your car still works dosent mean that it may or may not aid mine.

Adding another filter of the same type and quality of your OEM unit may provide some restriction, to what amount, no one can really say. As to aid, it will provide zero additional aid. Once the oil is filtered, filtering it again is pointless as you can only filter better by using a better filter. You can do what you want, but I am sure you won't see any benefit and might see some negative issues with the flow restriction. If you REALLY want to get into about this subject, post your question on http://theoildrop.server101.com/cgi/ultimatebb.cgi

I realize that few of you may have any exlerience with this scenario but please dont bother me with your BS hearsay just because you dont have one and your car still works dosent mean that it may or may not aid mine.

Are you talking to me there? I was just making some points that I thought might add to the conversation, nothing more nothing less. Irregardless though, you can go **** yourself.